Lasting machine



May 17, 1938. J. c. LISBON 2,117,336

LASTING MACHINE Filed Nov. 2, 1956 Patented May 17, 1938 UNITED STATES PATENT OFFICE LASTING MACHINE Application November 2, 1936, Serial No. 108,741

9 Claims.

The invention relates to lasting machines having means for shaping an upper over a last and for fastening the upper in lasted relation to an insole or other shoe bottom part (hereinafter frequently referred togenerically as the sole). The invention is illustrated as embodied in a machine of the type disclosed in United States Letters Patent No. 1,815,295, granted July 21, 1931, on an application of George Goddu, the machine being 10 provided with means for driving staples to fasten the upper. It will be understood, however, that in some aspects the invention is not limited to machines of that particular type nor limited to machines having means for driving fastenings.

Machines of the type disclosed in the abovementioned Letters Patent include in their organization means for pulling an upper over a last successively in different locations as the shoe is presented in different positions by the operator,

and fastening-inserting mechanism comprising a staple-guiding nozzle movable inwardly over the bottom of the shoe to lay the marginal portion of the upper over the outer face of the sole, 2. driver for driving a staple from the nozzle after each overlaying operation to fasten the upper to the sole, and a deflector for curving the legs of each staple prior to and during their entrance into the shoe to anchor them in the sole. Machines of this type further include means for feeding staple wire and means for forming a Staple in response to the inward movement of the fastening-inserting mechanism; and such machines have also been provided heretofore with means which may be used at will to stop the feed of the wire and thus to render. the fastening-inserting mechanism ineffective to insert fastenings if the upper is to be fastened to the sole by cement.

The present invention provides a novel organization including a pounding device which is movable under the control of the operator into such relation to the fasteningdnserting mechanism as to move inwardly over the bottom of the shoe with that mechanism into position to pound the margin of the upper in lasting the shoe with cement, and means for operating the pounding device at the end of the inward movement of the fastening-inserting mechanism. As illustrated, the pounding device comprises a pounder ar- 00 ranged to act on the overlaid margin of the upper in a location between the fastening-inserting mechanism and the edge of the shoe bottom and having also a portion arranged to extend farther inwardly over the shoe bottom to act on the mar- 55 gin of the upper at one side of the fastening-inserting mechanism. When in position for use the upper-engaging face of the pounder is located above the upper-engaging face of the fastening-inserting mechanism so that it has no effect on the upper in the overlaying operation, and conveniently there is provided a hammer which is arranged to be operated by the same means which operates the staple driver for imparting to the pounder a blow to force it by impact against the overlaid margin of the upper. 10 In the machine illustrated there is provided a slide for moving the fastening-inserting mechanism inwardly over the bottom of the shoe as heretofore in a downwardly and forwardly inclined direction, after which the slide is swung 145 also as heretofore in a direction to increase the pressure of the fastening-inserting mechanism on the upper; and when the above-mentioned pounder is in operative position it acts to pound against the sole the overlaid margin of the up- 20 per while the upper is thus pressed firmly against the sole by the fastening-inserting mechanism. In the use of the machine for lasting shoes with cement, therefore, the marginal portion of the upper is laid inwardly over the sole by the fas- 25 tening-inserting mechanism and pressed into position to adhere thereto in each lasting location, after which a blow is delivered by the pounder on a portion of the margin in that location and also on a portion thereof previously laid over the sole 30 in an adjacent location, thus insuring firm and permanent adherence of the upper to the sole.

The above and other features of the invention, including various novel details of construction and combinations of parts, will now be more par- 35 ticularly described by reference to the accompanying drawing and pointed out in the claims.

In the drawing,

Fig. 1 is a perspective view of a portion of the head of a machine embodying the invention, 40 showing the parts in the positions that they occupy when the machine is at rest;

Fig. 2 is a view of a portion of the structure in side elevation, but showing the parts in the positions that they occupy at the end of the overlaying operation with the pounding device in position for use;

Fig. 3 is a perspective View illustrating the relative positions of the staple-guiding nozzle and deflector and the pounding device at the end of the pounding operation;

Fig. 4 is a plan view of the mechanism for moving the pounding device into and out of position for use, and

Fig. 5 is a view in front elevation of the mechanism for stopping the feed of the wire.

The invention is illustrated as embodied in a machine of the type disclosed in the abovementioned Letters Patent and accordingly only such features of the general organization will be described herein as are necessary for an understanding of the invention.

It will be understood that the shoe on its last is supported in the hands of the operator and is presented successively in different positions as its opposite sides are lasted progressively. To assist in determining the proper relation of the shoe to the lasting instrumentalities, the machine is provided with a side gage Ill arranged to engage the shoe upper opposite or near the edge of the sole and with a shoe bottom rest l2 arranged to engage the outer face of the sole. The upper is pulled over the last and the sole when the shoe is in each lasting position by a gripper comprising a pair of jaws M. For laying the marginal portion of the upper inwardly over the sole and fastening it with staples there is provided a slide or carrier 56 (Figs. 1 and 2) which is movable along a guideway formed on a member IS in a forwardly and downwardly inclined direction toward the bottom of the shoe. This slide carries a staple guide or nozzle 20, a staple driver 22 and a deflector 24 the lower end of which occupies a position opposite the end of the staple-guiding passage in the nozzle 2% for engaging the legs of the staple and curving them prior to and during their entrance into the shoe so that they are anchored in the sole without emerging from its inner face. The operative movement of the driver is in a rearward direction (1. e., a direction away from the operator) and the deflector curves the legs of the staple forwardly away from the edge of the sole. It will be understood that in the forward movement of the slide it prior to the driving of the staple the nozzle 20 and deflector 24 act as overlaying means to lay the upper over the outer face of the sole.

The staple driver 22 is fastened to a driver slide 26 (Fig. 2) which. is movable in a guideway formed in a bracket 23 secured to a forward extension of the slide it. The driver slide 26 is operated by a lever 36 which is pivoted on a stud 32 on the forward extension of the slide l6 and carries a lug 34 which extends into a recess in the driver slide. The lever 38 is operated by a bell-crank lever 36 which is pivoted on a rod 38 on the slide it and is operated in turn by a torsion spring to (Fig. 2). The forwardly extending arm #32 of the bell-crank lever 36 carries a roll (not shown) which operates in a cam slot 46 in the lever 38, the cam slot being so formed that staple-driving movement is imparted to the lever 30 by upward movement of this arm. It will be understood that the lever 36 is swung in a direction to retract the driver 22 and to tension the spring 40 in response to the forward movement of the slide l6 by the engagement of a latch 48 with the lower end of a plate 59 fast on a downwardly extending arm of the bell-crank lever 36, and that means is provided, which is substantially the same as that shown in the previously mentioned Letters Patent No. 1,815,295, for operating the latch to release the bell-crank lever 35 to the action of the spring 56 after the slide It has completed its forward movement.

Means with which the machine is provided for feeding the staple wire in response to the forward movement of the slide 15 and for thereafter transferring the staple from forming position into alinement with the driver is not herein shown in detail, since it is substantially the same as means fully disclosed in United States Letters Patent No. 1,796,451, granted March 17, 1931, on an application of George Goddu. The machine is further provided with means for stopping the feeding of the staple wire to prevent the driving of staples when lasting with cement. It will be understood that the wire-feeding means is operated through a link 52 and a bell-crank lever 54 (Fig. 5) provided with a roll 56 engaged by a cam 58. Pivoted to the head of the machine is a lever 60 having thereon a projection 62 which, when the lever Bil is in the position illustrated in Fig. 5, is arranged to engage a face 64 on the lever 54 to hold this lever in such a position as to prevent it from being operated by the cam 58. For moving the lever 6% into the position shown in Fig. 5 to interrupt the feeding of the wire there is provided a hand lever 66 (Fig. l) pivotally mounted on a bracket 68 fast to the head of the machine. The hand lever 66 has formed thereon an arm ill to which there is pivotally connected a rod 12 which extends through a recess in a stud M (Fig. 5) pivotally mounted on the lever 60 and on which there are fast collars 16 arranged to engage the stud Hi, the construction being such that, as the hand lever 65 is swung rearwardly, the lever 60 through the rod i2 is swung into the position shown in Fig. 5. The hand lever 66 is provided with a spring-pressed detent 78 arranged to enter one or the other of a pair of recesses 80 form-ed in the bracket 68 to hold the hand lever against movement rela tively to the bracket.

For purposes of this invention there is provided a pounding device which is movable at the will of the operator into such relation to the fastening-inserting mechanism as to move inwardly over the bottom of the shoe with that mechanism into position to act on the overlaid margin of the upper to force it by impact against the outer face of the sole when the upper is lasted with cement. The pounding device comprises a member 82 (Fig. 2) secured to a second member 84 pivoted on a slide 86 mounted in a guideway formed in a bracket 88 fast on the slide I6. The member or pounder 82 extends forwardly and has a substantially L-shaped pounding portion arranged partly to surround the nozzle 20 and the deflector 24 when the parts are in the positions shown in Figs. 2 and 3. The pounder 82 has a flat upper-engaging face 90 which is arranged to act on the overlaid margin of the upper between the nozzle 29 and deflector 2t and the edge of the shoe bottom and also at one side of the nozzle and deflector (Fig. 3). Extending between the slide 86 and the member 84 is a compression spring 92 which acts to swing the pounder 82 relatively to the slide 86 in the direction to elevate its pounding face 90, a screw 94 carried by the member 84 and arranged to engage a shoulder 96 on the slide 86 acting to limit swinging movement of the pounder in this direction. Preferably the screw 96 is so adjusted that the pounding face 90 of the pounder will be positioned initially in a plane above the upperengaging face of the staple nozzle 20 and deflector 24 and therefore out of contact with the upper as the staple nozzle and deflector move inwardly over the bottom of the shoe to lay the marginal portion of the upper over the sole. For controlling the slide 86 there is provided a lever 98 pivotally mounted on the bracket 88 (Fig. 4)

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and provided with an inwardly extending arm I60 arranged to engage one or the other of a pair of pins I02 carried by the slide and extending upwardly through a slot I04 in the bracket 88, the construction being such that by swinging the lever 98 a forward movement may be imparted to the slide 86 to move the pounder 82 into the position shown in Fig. 2 for pounding the upper against the sole, or a rearward movement may be imparted to the slide to move the pounder into a retracted position. The length of the arm I00 is such that as the slide 86 completes either its forward or its rearward movement a further swinging movement may be imparted to the lever 98 to move the arm I00 relatively to the pin I02 through which such movement was imparted to the slide into a position to lock the slide against movement in the opposite direction. For imparting to the lever 98 its swinging movements there is connected to a forwardlyextending arm I06 of the hand lever 65 a rod I88 having adjustably fastened thereon a pair of collars Hi] arranged to serve as abutments engaged by a stud I I2 through which the rod l 68 extends, the stud being pivotally mounted on an arm I M of the lever 98. The forward position of the pounding member 82 is determined by engagement of the foremost pin I I2 with the bracket 88 at the forward end of the slot I M (Fig. 4).

The illustrated machine is provided with means for imparting to the pounding device at the completion of the inward movement of the overlaying mechanism a hammer blow to cause the pounding device to pound the overlaid margin of the upper against the bottom face of the sole. This means comprises a hammer I I6 which is adjustably secured to a lever I I8 pivoted on the stud 32 and provided with an upwardly extending arm I29 in which there is formed a cam slot I22 engaging a roll I24 carried by the forwardly extending arm 42 of the lever 36. The member 84 to which the pounder 82 is secured has an upwardly extending arm I26 provided with a head I28 which, when the pounding device is in its forward position (Figs. 1 and 2), is beneath the hammer H5. The cam slot I22 is so formed that as the arm 42 moves upwardly the hammer H5 is swung in a direction to strike the head I28, thereby forcing the pounder 82 by impact against the overlaid margin of the upper. After the fastening-inserting mechanism has com-- pleted its inward movement to lay the marginal portion of the upper over the sole the carrier I6 is swung downwardly to cause the fasteninginserting mechanism to press the overlaid margin of the upper more firmly against the sole, and as the pressure of the fastening-inserting mechanism on the upper is thus increased the latch 48 is operated to release the bell-crank lever 36 to the action of the spring 49 to operate the hammer H6. After the arm 42 has completed its upward swinging movement to operate the hammer a reverse upward swinging movement of somewhat greater extent than its downward swinging movement prior to the operation of the hammer is imparted to the carrier I6 before the beginning of its retractive movement along its inclined guideway on the member I8. The means for thus imparting to the carrier I6 its swinging movements and the means for operating the latch 48 are not herein shown since they are fully shown and described in the above mentioned Letters Patent No. 1,815,295.

The machine is also provided with means for moving the driver 22 into a retracted position to prevent impact of the driver on the deflector 24 and for adjusting the position of the edge gage I0 to vary the position of the shoe laterally in response to the rearward swinging movement of the hand lever 66 to move the pounding device into position for use. These parts are not shown in detail since they are fully disclosed in United States Letters Patent No. 2,022,776, granted on December 3, 1935, upon an application of F. L. MacKenzie and B. B. Blanchard.

In the use of the machine for lasting shoes without driven staples, as when the upper is to be fastened by cement, the operator swings the hand lever 66 rearwardly to the position shown in Fig. 1 to move the pounding device forwardly and to prevent the feeding of the staple wire. In view of the fact that the lower face of the pounder 82, when the pounder is in its operative position, is located higher than the upper-engaging faces of the staple nozzle and deflector, as hereinbefore explained, the marginal portion of the upper is laid inwardly over the outer face of the sole by the staple nozzle and deflector as the carrier I6 is moved in its downwardly and forwardly inclined direction. At the end of the overlaying operation the carrier I6 is swung in a direction to increase the pressure of the staple nozzle and deflector on the overlaid margin of the upper, and while the nozzle and deflector thus hold the upper pressed against the sole the hammer H6 is operated to deliver a blow to the pounding device to cause it to force the margin of the upper between the staple nozzle and deflector and the edge of the shoe bottom by impact more firmly against the outer face of the sole. By reference to Fig. 3, it will be seen that the pounder 82 is considerably wider than the staple nozzle and deflector and has a portion I30 which extends inwardly over the shoe bottom at one side of the nozzle and deflector for engaging and pounding the overlaid margin of the upper also in that location over substantially its entire width. It will be evident that the pounder 82 and the nozzle and deflector combined act on the overlaid margin of the upper over substantially its entire width in eachlasting location to force it into firm and permanent adherence to the sole and that in addition the pounder acts to beat against the sole, over substantially its entire width, a portion of the margin of the upper previously laid inwardly over the sole by the nozzle and deflector. It will also be evident that by providing a pounder that is located high enough not to engage the upper in the overlaying operation, the nozzle and deflector may be used for that purpose when lasting with cement the same as when lasting with staples.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a lasting machine, the combination with means for shaping an upper over a last, fasten ing-inserting mechanism movable to lay the marginal portion of the upper inwardly over a sole on the last in lasting either with fastenings or with cement, and means for preventing insertion of fastenings by said mechanism in lasting a shoe with cement, of means movable under control of the operator into such relation to said fastening-inserting mechanism as to move inwardly over the sole with that mechanism into position to pound the margin of the upper laid inwardly over the sole by said mechanism in lasting with cement, and mechanism for delivering a blow to operate said pounding means after it has thus been moved inwardly over the sole.

2. In a lasting machine, the combination with means for shaping an upper over a last, fastening-inserting mechanism comprising a guide for fastenings movable inwardly over the bottom of the shoe to lay the marginal portion of the upper over a sole on the last, and means for preventing insertion of fastenings by said mechanism in lasting a shoe with cement, of a member constructed partially to surround said guide and movable therewith, said member having an upper-engaging face arranged initially to lie in a plane above the upper-engaging face of said guide in its movement inwardly over the shoe bottom, and means for imparting to said member a hammer blow to cause it to force the marginal portion of the upper by impact against the outer face of the sole.

3. In a lasting machine, the combination with means for shaping an upper over a last, fastening-inserting mechanism comprising a staple guide and a defiector arranged relatively to said guide to curve the legs of the staple prior to and during their entrance into the shoe to anchor them in the shoe, said guide and deflector being movable inwardly over the bottom of the shoe in a direction inclined toward its bottom face to lay the marginal portion or" the upper over the sole, and means for preventing insertion of fastenings by said mechanism in lasting a shoe with cemerfi, member for delivering a blow on the inwardly extending margin of the upper to force it by impact against the sole, said member being arranged to occupy initially a position above the, plane of operation of said guide and deflector while moving with them in the same inclined direction over the bottom of the shoe, and means for operating the pounding member after the completion of the inward movement of the guide and deflector and while the upper is held pressed against the sole by said guide and deflector.

4. In a machine for lasting shoes in which the marginal portion of the upper is secured in lasted relation to a sole by an adhesive, the combination with an overlaying device movable inwardly over the bottom of the shoe in a direction inclined to- Ward its bottom face for laying the marginal portion of the upper over the sole and pressing it into position to adhere thereto, of means movable with said overlaying device in the same inclined direction into position to pound the overlaid mar gin of the upper against the sole, and means for operating said pounding means while the overlaying device remains in upperpressing position.

5. In a machine for lasting shoes in which the marginal portion of the upper is secured in lasted relation to a sole by an adhesive, the combination with an overlaying device movable inwardly over the bottom of the shoe for laying the marginal portion of the upper over the sole and pressing it into position to adhere thereto, of a member for pounding the overlaid margin of the upper against the sole, said pounding member being movable with said overlaying device over the bottom of the shoe but out of substantial contact with the margin of the upper. and means movable with said pounding member for delivering a blow to operate said member after the overlaying device has completed its inward movement and while the upper is held pressed against the sole by said overlaying device.

6. In a machine for shaping uppers over lasts, the combination with an overlaying device movable inwardly over the bottom of a shoe for laying the marginal portion of an upper over a sole in position to adhere thereto through the action of cement, of means for pounding the overlaid margin of the upper against the sole, said means comprising a pounder movable with said overlaying device over the bottom of the shoe and movable also relatively to said overlaying device into and out of operative position, and a hammer for delivering a blow on said pounder at the completion of the inward movement of the overlaying device to force the pounder against the overlaid margin of the upper.

7. In a machine for shaping uppers over lasts, an overlaying device movable inwardly over the bottom of a last to lay the marginal portion of an upper over a sole on the last in position to adhere thereto through the action of cement, a member for delivering a blow on the overlaid margin of the upper to force it by impact against the outer face of the sole, said member being constructed to act on the upper between the overlaying device and the edge of the shoe bottom and having a portion extending farther inwardly over the bottom of the shoe at one side of the overlaying device to act also on a portion of the margin of the upper previously laid inwardly over the sole by said overlaying device, and means for operating the pounding member at the end of the inward movement of the overlaying device.

8. In a machine for shaping uppers over lasts, the combination with an overlaying device movable inwardly over the bottom of a last for laying the marginal portion of an upper over a sole on the last and pressing it into position to adhere thereto, of a pounder movable inwardly over the bottom of the last into position to pound the overlaid margin of the upper against the sole, said pounder having a substantially L-shaped pounding portion arranged to extend lengthwise of the shoe to engage the overlaid portion of the upper between the overlaying device and the edge of the shoe bottom and to extend transversely of the shoe bottom at one side of the overlaying device to engage a portion of the margin of the upper previously laid inwardly overthe sole by said overlaying device, and means for actuating the pounder to pound the upper while the upper is held under pressure by said overlaying device.

9. In a machine for shaping uppers over lasts, overlaying means movable inwardly over the bottom of a shoe in a direction inclined toward the shoe bottom to lay the marginal portion of an upper over a sole in position to adhere thereto through the action of cement, of means arranged to act by impact on the overlaid portion of the upper to force it into firm adherence to the sole comprising a pounder movable with said overlaying means over the bottom of the shoe into position to pound the upper, said pounder being mounted for swinging movement heightwise of the shoe about an aids extending lengthwise of the edge of the shoe bottom, a spring for holding said pounder out of engagement with the bottom of the shoe, and a hammer for delivering a blow on said pounder at the end of the inward movement of said overlaying device.

JOSEPH C. LISBON. 

